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Serum 25-Hydroxyvitamin D levels

DSG1 · rs8091117

What the study found

Who was studied 443,734 European ancestry individuals.

The effect Each copy of the A allele shifted the measure 0.0241 lower (95% confidence interval 0.016-0.032); p = 1 × 10−9.

How common The A allele had a frequency of about 7% in the people studied.

Where it sits Chromosome 18, band 18q12.1 — a missense change in DSG1.

What ClinVar records

Classification Benign; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 3 submitters), last evaluated 2026-02-04. ClinVar record 1166989 NM_001942.4(DSG1):c.1493C>A (p.Thr498Asn)

What this is ClinVar's aggregate record for this position (as of its 2026-10-12 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.

What each result means

A/A Two copies of the version the research linked to Serum 25-Hydroxyvitamin D levels. That is the strongest link of the three results. A link in a study is not a diagnosis.
A/C One copy of the version the research linked to Serum 25-Hydroxyvitamin D levels. That is a smaller link than two copies.
C/C No copy of the version the research linked to Serum 25-Hydroxyvitamin D levels. This is the starting point the study compared everyone against.
Source

Questions about rs8091117

What is rs8091117?

rs8091117 is a single position in the genome, in or near the DSG1 gene. Published research associates it with serum 25-hydroxyvitamin d levels. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs8091117 mean I will get this?

No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.

Where does the information about rs8091117 come from?

GWAS Catalog, American journal of human genetics 2020, PMID:32059762. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.

Serum 25-Hydroxyvitamin D levels (rs8091117). MyGeneLog™. https://www.mygenelog.com/variants/rs8091117

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